167662405156 has 9 divisors (see below), whose sum is σ = 293410642161. Its totient is φ = 83830793112.

The previous prime is 167662405153. The next prime is 167662405177. The reversal of 167662405156 is 651504266761.

The square root of 167662405156 is 409466.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 10066108900 + 157596296256 = 100330^2 + 396984^2 .

It is a super-2 number, since 2×167662405156² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (167662405153) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 716566 + ... + 921298.

Almost surely, 2^167662405156 is an apocalyptic number.

167662405156 is the 409466-th square number.

It is an amenable number.

167662405156 is a deficient number, since it is larger than the sum of its proper divisors (125748237005).

167662405156 is an frugal number, since it uses more digits than its factorization.

167662405156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409470 (or 204735 counting only the distinct ones).

The product of its (nonzero) digits is 1814400, while the sum is 49.

Multiplying 167662405156 by its sum of digits (49), we get a square (8215457852644 = 2866262²).

The spelling of 167662405156 in words is "one hundred sixty-seven billion, six hundred sixty-two million, four hundred five thousand, one hundred fifty-six".